WO1996018586A1 - Vitrifiable mixture for quality glasses - Google Patents

Vitrifiable mixture for quality glasses Download PDF

Info

Publication number
WO1996018586A1
WO1996018586A1 PCT/IT1995/000215 IT9500215W WO9618586A1 WO 1996018586 A1 WO1996018586 A1 WO 1996018586A1 IT 9500215 W IT9500215 W IT 9500215W WO 9618586 A1 WO9618586 A1 WO 9618586A1
Authority
WO
WIPO (PCT)
Prior art keywords
bao
zno
oxide
glass
oxides
Prior art date
Application number
PCT/IT1995/000215
Other languages
English (en)
French (fr)
Inventor
Giancarlo Boschi
Fabio Paloschi
Original Assignee
C.A.L.P. Cristalleria Artistica La Piana S.P.A.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to DE69521440T priority Critical patent/DE69521440T2/de
Priority to EP95940408A priority patent/EP0797550B1/en
Priority to AU41870/96A priority patent/AU4187096A/en
Priority to CZ19971816A priority patent/CZ289336B6/cs
Application filed by C.A.L.P. Cristalleria Artistica La Piana S.P.A. filed Critical C.A.L.P. Cristalleria Artistica La Piana S.P.A.
Priority to KR1019970703982A priority patent/KR100262262B1/ko
Priority to SI9520147A priority patent/SI9520147A/sl
Priority to DK95940408T priority patent/DK0797550T3/da
Priority to BR9509993A priority patent/BR9509993A/pt
Priority to SK747-97A priority patent/SK74797A3/sk
Priority to JP8518561A priority patent/JPH10510793A/ja
Priority to RU97111785/03A priority patent/RU2137725C1/ru
Priority to AT95940408T priority patent/ATE202328T1/de
Publication of WO1996018586A1 publication Critical patent/WO1996018586A1/en
Priority to MXPA/A/1997/004206A priority patent/MXPA97004206A/xx
Priority to GR20010400974T priority patent/GR3036121T3/el

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C3/00—Glass compositions
    • C03C3/04—Glass compositions containing silica
    • C03C3/076—Glass compositions containing silica with 40% to 90% silica, by weight
    • C03C3/078—Glass compositions containing silica with 40% to 90% silica, by weight containing an oxide of a divalent metal, e.g. an oxide of zinc
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C4/00—Compositions for glass with special properties
    • C03C4/0028—Compositions for glass with special properties for crystal glass, e.g. lead-free crystal glass
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S501/00—Compositions: ceramic
    • Y10S501/90—Optical glass, e.g. silent on refractive index and/or ABBE number
    • Y10S501/901—Optical glass, e.g. silent on refractive index and/or ABBE number having R.I. at least 1.8
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S501/00—Compositions: ceramic
    • Y10S501/90—Optical glass, e.g. silent on refractive index and/or ABBE number
    • Y10S501/903—Optical glass, e.g. silent on refractive index and/or ABBE number having refractive index less than 1.8 and ABBE number less than 70

Definitions

  • the present invention relates to the composition of a glass with the characteristics of lead crystal, but without the presence of lead.
  • Lead crystal is well known as a glass characterized in particular by exceptional brilliance, refractive index, density and sonority.
  • the lead can be replaced by a mixture of elements such as barium, zinc, calcium, strontium, bismuth, titanium, and others which are non- toxic and increase the values of density and refractive index.
  • elements such as barium, zinc, calcium, strontium, bismuth, titanium, and others which are non- toxic and increase the values of density and refractive index.
  • many of these elements have a high price and can impair the workability or the colour of the glass, so that their use can be unsuitable in industrial applications.
  • This composition is characterized by replacement of the lead with a mixture of zinc, strontium and calcium, and the corresponding glass has a satisfactory density and refractive index, but it proves to be difficult to work, as it has a high melting point and softening point and a devitrification temperature that is unsuitable for continuous melting.
  • Another lead-free crystal is that envisaged in European Patent Application published under No. 0 594 422 Al in the name of Toyo Glass Co. Ltd., with the composition according to the following table.
  • the lead is replaced by a mixture of barium, zinc, titanium and boron, and the glass has satisfactory values of the physical parameters, in particular density and refractive index, at a reasonable cost.
  • glasses with the chemical composition given in this table can, because of the high titanium content, be difficult to decolorize and to work by hand. Disclosure of the invention
  • composition lead is replaced by a mixture comprising mainly zinc, plus barium, lanthanum, niobium and bismuth, to give a total content of the oxides of the said elements that ranges from 26% to 33%.
  • the sum of these oxides excluding zinc oxide must be between 7% and 14%, and furthermore it is possible to add zirconium, yttrium and titanium with a total combined content of their oxides of less than 6% for further improvement of the chemical resistance and refractive index of the glass.
  • Other features defining the mixture of oxides for formation of the glass according to the invention are:
  • Table 2/2 gives the compositions and the measured values of some parameters of glasses with composition according to the fields defined by Table 2/1: Table 2/2
  • Table 3/1 shows two ranges of composition according to this last, restricted field: Table 3/1
  • Table 3/2 shown below gives the compositions and the measured values of some parameters of two glasses possessing compositions according to the ranges defined in Table 3/1:
PCT/IT1995/000215 1994-12-13 1995-12-11 Vitrifiable mixture for quality glasses WO1996018586A1 (en)

Priority Applications (14)

Application Number Priority Date Filing Date Title
SI9520147A SI9520147A (sl) 1994-12-13 1995-12-11 Vitrifikacijska zmes za kvalitetna stekla
AU41870/96A AU4187096A (en) 1994-12-13 1995-12-11 Vitrifiable mixture for quality glasses
CZ19971816A CZ289336B6 (cs) 1994-12-13 1995-12-11 Bezolovnaté sklo
BR9509993A BR9509993A (pt) 1994-12-13 1995-12-11 Misture vitrificável para vidros de qualidade
KR1019970703982A KR100262262B1 (ko) 1994-12-13 1995-12-11 고품질유리의 유리화혼합물
EP95940408A EP0797550B1 (en) 1994-12-13 1995-12-11 Vitrifiable mixture for quality glasses
DK95940408T DK0797550T3 (da) 1994-12-13 1995-12-11 Glasdannende blanding til kvalitetsglasser
DE69521440T DE69521440T2 (de) 1994-12-13 1995-12-11 Glasbildende zusammensetzung für glas mit hoher qualität
SK747-97A SK74797A3 (en) 1994-12-13 1995-12-11 Vitrifiable mixture for quality glasses
JP8518561A JPH10510793A (ja) 1994-12-13 1995-12-11 高級ガラス用のガラス化混合物
RU97111785/03A RU2137725C1 (ru) 1994-12-13 1995-12-11 Стеклуемая смесь для высокосортного стекла
AT95940408T ATE202328T1 (de) 1994-12-13 1995-12-11 Glasbildende zusammensetzung für glas mit hoher qualität
MXPA/A/1997/004206A MXPA97004206A (en) 1994-12-13 1997-06-06 Vitrifice mix for cali crystals
GR20010400974T GR3036121T3 (en) 1994-12-13 2001-06-27 Vitrifiable mixture for quality glasses

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT94FI000223A IT1268814B1 (it) 1994-12-13 1994-12-13 Miscela vetrificabile per vetri di qualita'
ITFI94A000223 1994-12-13

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US09/328,303 Continuation-In-Part US6235667B1 (en) 1994-12-13 1999-06-08 Vitrifiable mixture for quality glasses

Publications (1)

Publication Number Publication Date
WO1996018586A1 true WO1996018586A1 (en) 1996-06-20

Family

ID=11351036

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IT1995/000215 WO1996018586A1 (en) 1994-12-13 1995-12-11 Vitrifiable mixture for quality glasses

Country Status (23)

Country Link
US (1) US6235667B1 (it)
EP (1) EP0797550B1 (it)
JP (1) JPH10510793A (it)
KR (1) KR100262262B1 (it)
CN (1) CN1046689C (it)
AR (1) AR000318A1 (it)
AT (1) ATE202328T1 (it)
AU (1) AU4187096A (it)
BR (1) BR9509993A (it)
CZ (1) CZ289336B6 (it)
DE (1) DE69521440T2 (it)
DK (1) DK0797550T3 (it)
ES (1) ES2160181T3 (it)
GR (1) GR3036121T3 (it)
HU (1) HUT77862A (it)
IL (1) IL116180A (it)
IT (1) IT1268814B1 (it)
PT (1) PT797550E (it)
RU (1) RU2137725C1 (it)
SI (1) SI9520147A (it)
SK (1) SK74797A3 (it)
TR (1) TR199501556A2 (it)
WO (1) WO1996018586A1 (it)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0893417A1 (en) * 1996-06-07 1999-01-27 Toyo Glass Company Limited Production method for lead-free crystal glass composition
EP1137606A1 (en) * 1998-08-14 2001-10-04 Corning Incorporated Lead-free glasses
AU752935B2 (en) * 2000-11-13 2002-10-03 Hoya Corporation Composition for vapor deposition, method for forming antireflection film using it, and optical element

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US20040185039A1 (en) * 2002-08-30 2004-09-23 Heinz Kohler Therapeutic applications of noncovalent dimerizing antibodies
US20050033033A1 (en) * 1998-05-04 2005-02-10 Heinz Kohler Trans-membrane-antibody induced inhibition of apoptosis
US7569674B2 (en) * 1998-05-04 2009-08-04 Innexus Biotechnology International Limited Autophilic antibodies
US20090208418A1 (en) * 2005-04-29 2009-08-20 Innexus Biotechnology Internaltional Ltd. Superantibody synthesis and use in detection, prevention and treatment of disease
JP4474724B2 (ja) * 1999-05-24 2010-06-09 株式会社デンソー 無鉛釉薬及びスパークプラグ
DE19936699C2 (de) * 1999-08-04 2001-10-31 Nachtmann F X Bleikristall Blei- und bariumfreies Kristallglas
DE19958522B4 (de) * 1999-12-04 2004-04-08 Schott Glas Zinkhaltige optische Gläser
CN100354221C (zh) * 2001-01-11 2007-12-12 日本板硝子株式会社 折射率分布型透镜玻璃用母材玻璃组合物
JP2004196649A (ja) * 2002-12-06 2004-07-15 Sumitomo Electric Ind Ltd 蛍光性ガラス、光増幅用導波路および光増幅モジュール
US20040259713A1 (en) 2003-06-11 2004-12-23 3M Innovative Properties Company Microspheres comprising titania and bismuth oxide
JP4907850B2 (ja) * 2003-06-11 2012-04-04 日本特殊陶業株式会社 低温焼成誘電体磁器組成物及びその製造方法
US7095941B2 (en) * 2004-10-27 2006-08-22 Schott Corporation Fused optical fiber optical device system
US7513941B2 (en) 2005-11-14 2009-04-07 3M Innovative Properties Company Pavement marking, reflective elements, and methods of making micospheres
DE102006012116A1 (de) * 2006-03-14 2007-09-20 Schott Ag Glaserfaserkabel
WO2007135752A1 (ja) 2006-05-19 2007-11-29 Toyo-Sasaki Glass Co., Ltd. クリスタルガラス物品
US20080280034A1 (en) * 2007-05-11 2008-11-13 3M Innovative Properties Company Pavement marking and reflective elements having microspheres comprising lanthanum oxide and aluminum oxide with zirconia, titania, or mixtures thereof
DE202009018732U1 (de) 2008-02-26 2012-11-27 Corning Inc. Läutermittel für Silikatgläser
WO2011022022A1 (en) 2009-08-21 2011-02-24 3M Innovative Properties Company Pavement markings, reflective elements, and methods of making microspheres
CN102320747B (zh) * 2011-06-27 2013-07-17 浙江伟兴水晶有限公司 浅水晶黄色水晶珠胚的制备方法
WO2016074750A1 (en) 2014-11-13 2016-05-19 Gerresheimer Glas Gmbh Glass forming machine particle filter, a plunger unit, a blow head, a blow head support and a glass forming machine adapted to or comprising said filter
CN105776851A (zh) * 2016-03-01 2016-07-20 苏州云舒新材料科技有限公司 一种无铅隔热玻璃及其制备方法
CN106192655B (zh) * 2016-09-21 2018-10-26 浙江泛城设计股份有限公司 高效太阳能地砖
CZ307684B6 (cs) * 2016-12-23 2019-02-13 Preciosa, A.S. Materiál pro výrobu bižuterních a šperkových kamenů s vysokým indexem lomu a vysokou tepelnou odolností
RU2645687C1 (ru) * 2016-12-29 2018-02-27 Федеральное государственное бюджетное образовательное учреждение высшего образования - Российский химико-технологический университет имени Д.И. Менделеева (РХТУ им. Д.И. Менделеева) Прозрачный ситалл и способ его получения
RU2634595C1 (ru) * 2017-02-06 2017-11-01 Юлия Алексеевна Щепочкина Стекло
RU2669210C1 (ru) * 2017-09-18 2018-10-09 Юлия Алексеевна Щепочкина Стекло
KR20210096138A (ko) 2018-11-26 2021-08-04 오웬스 코닝 인텔렉츄얼 캐피탈 엘엘씨 비탄성률이 향상된 고성능 섬유 유리 조성물
WO2020112398A1 (en) 2018-11-26 2020-06-04 Ocv Intellectual Capital, Llc High performance fiberglass composition with improved elastic modulus
CZ201991A3 (cs) * 2019-02-18 2019-12-18 Preciosa, A.S. Sklokeramický materiál spinelového typu pro výrobu bižuterních a šperkových kamenů
CZ309420B6 (cs) * 2022-01-10 2022-12-21 PRECIOSA - LUSTRY, a.s Bezolovnaté křišťálové sklo
CZ309514B6 (cs) * 2022-01-10 2023-03-15 Preciosa - Lustry, A.S. Bezolovnaté křišťálové sklo s obsahem europia
EP4345075A1 (fr) 2022-09-29 2024-04-03 Baccarat Composition de cristal sans plomb, verre et article en verre a base de cette composition

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Publication number Priority date Publication date Assignee Title
US4098596A (en) * 1975-12-15 1978-07-04 Corning Glass Works Method for preparing optical articles from hydrated glasses
EP0553586A1 (fr) * 1992-02-19 1993-08-04 Compagnie Des Cristalleries De Baccarat Compositions de cristal sans plomb
JPH06107425A (ja) * 1991-04-05 1994-04-19 Ohara Inc 光学ガラス

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JP2906104B2 (ja) * 1992-10-20 1999-06-14 東洋ガラス 株式会社 鉛を含まないクリスタルなガラス組成物
FR2713622B1 (fr) * 1993-12-10 1996-03-01 Corning Vitro Corp Verres ne contenant pas de plomb et présentant les caractéristiques du cristal.

Patent Citations (3)

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Publication number Priority date Publication date Assignee Title
US4098596A (en) * 1975-12-15 1978-07-04 Corning Glass Works Method for preparing optical articles from hydrated glasses
JPH06107425A (ja) * 1991-04-05 1994-04-19 Ohara Inc 光学ガラス
EP0553586A1 (fr) * 1992-02-19 1993-08-04 Compagnie Des Cristalleries De Baccarat Compositions de cristal sans plomb

Non-Patent Citations (1)

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Title
CHEMICAL ABSTRACTS, vol. 121, no. 12, 19 September 1994, Columbus, Ohio, US; abstract no. 140000, page 408; *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0893417A1 (en) * 1996-06-07 1999-01-27 Toyo Glass Company Limited Production method for lead-free crystal glass composition
EP1137606A1 (en) * 1998-08-14 2001-10-04 Corning Incorporated Lead-free glasses
EP1137606A4 (en) * 1998-08-14 2004-03-24 Corning Inc LEAD FREE GLASSES
AU752935B2 (en) * 2000-11-13 2002-10-03 Hoya Corporation Composition for vapor deposition, method for forming antireflection film using it, and optical element

Also Published As

Publication number Publication date
CN1046689C (zh) 1999-11-24
EP0797550A1 (en) 1997-10-01
US6235667B1 (en) 2001-05-22
EP0797550B1 (en) 2001-06-20
BR9509993A (pt) 1997-12-30
IL116180A (en) 2000-01-31
SI9520147A (sl) 1998-02-28
JPH10510793A (ja) 1998-10-20
AR000318A1 (es) 1997-06-18
IT1268814B1 (it) 1997-03-06
KR100262262B1 (ko) 2000-07-15
GR3036121T3 (en) 2001-09-28
PT797550E (pt) 2001-10-31
CZ289336B6 (cs) 2002-01-16
DK0797550T3 (da) 2001-09-03
ES2160181T3 (es) 2001-11-01
SK74797A3 (en) 1998-03-04
ITFI940223A1 (it) 1996-06-13
AU4187096A (en) 1996-07-03
ATE202328T1 (de) 2001-07-15
DE69521440D1 (de) 2001-07-26
DE69521440T2 (de) 2001-10-25
IL116180A0 (en) 1996-01-31
CZ181697A3 (en) 1997-11-12
CN1169707A (zh) 1998-01-07
HUT77862A (hu) 1998-08-28
MX9704206A (es) 1997-09-30
ITFI940223A0 (it) 1994-12-13
TR199501556A2 (tr) 1996-07-21
RU2137725C1 (ru) 1999-09-20

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